I am making a luau theme cake....the bottom layer of the cake needs to look like a grass skirt. What tip should I use to pipe the frosting? Any suggestions? Thanks so much!

The grass tip.

The grass tip (233 I think) is like piping a whole lot of small plain rounds, and although grass is not actually round, the overall effect does look like grass, especially if you let the ends hang/fan out from the bottom. Or you can use a leaf tip for something thicker that looks more like individual blades of grass or long palm fronds.

Holly

For the Hula girl cake I did, I used a large basket-weave tip with the ridges facing up. The bag was double loaded with 2 shades of green icing.

Here's a peek:
http://cakecentral.com/gallery/1785228

Kristy

I did exactly this a few weeks and, and I used a grass tip. I pipped from the bottom up, keeping the tip pretty close to the cake. I would suggest practicing on something, as the back of my cake wasn't quite as nice as the front while I was trying to get a hang of it.

here's the cake: http://cakecentral.com/gallery/2070763

I did a hula girl once and I used the ridged side of the basketweave tip first and then the grass tip on top of that. I thought it gave nice dimension. Sorry no pic